Customization: | Available |
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After-sales Service: | Yes |
Warranty: | 12 Months |
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1. Definition and Structural Features
The mooring four-eye plate (also called "four-hole plate" in some contexts) is a critical component in marine anchoring systems, designed to distribute load forces and enhance connection reliability in harsh marine environments. Its structure comprises:
Columnar and plate-like bodies: Perpendicularly welded to form a T-shaped base, with integrated reinforcing plates (typically arranged in right-triangular configurations) at their junctions for stress dispersion.
Four connection points: Positioned at the vertices (left/right for horizontal connections; upper/lower for vertical connections), enabling multi-directional linkage to anchors, chains, buoys, or floating balls.
Curved ends: Optimized for smooth rope/channel interaction to reduce wear.
2. Material and Manufacturing
High-strength metal: Typically fabricated from corrosion-resistant carbon steel (e.g., Q235A) or specialized alloys like AH36-grade steel for heavy-duty applications.
Integrated fabrication: Reinforcing plates, columnar/plate structures, and connection holes are welded as a single unit to ensure structural integrity.
Surface treatment: Anti-corrosion coatings (e.g., galvanization or epoxy) are applied for durability in saltwater environments9.
3. Functional Advantages
Force distribution: By segmenting mooring ropes and connecting multiple anchors/floating balls, it reduces localized stress on any single point, preventing rope fraying from wave impacts.
Enhanced stability: The triangular reinforcement plates and multi-axis connection design maintain buoy/offshore structure positioning even under extreme currents or storms.
Modular adaptability: Compatible with auxiliary components like three-eye connectors and weighted blocks to customize mooring configurations based on seabed conditions.
4. Key Applications
Buoy anchoring systems: Connects mid-rear rope segments to central anchors while linking surface floating balls via upper chains.
Offshore platforms/FPSOs: Integrates with dynamic positioning systems to resist lateral forces in deep-water oil/gas operations
.
Ship repair and temporary mooring: Serves as a cost-effective alternative to traditional bollards, installed on hulls via welded panels for secure dock positioning.
Stock No. | Chain Size(MM) | A(MM) | B(MM) | C(MM) | D(MM) | Proof Load(T) | Breaking Load(T) | Weight(KG) |
HSM030614001 | 38-46 | 320 | 168 | 50 | 76 | 81.2 | 106 | 31 |
HSM030614002 | 48-56 | 360 | 184 | 60 | 88 | 127 | 181 | 47 |
HSM030614003 | 58-38 | 430 | 225 | 80 | 102 | 190 | 287 | 90 |
HSM030614004 | 70-73 | 506 | 266 | 90 | 120 | 270 | 404 | 140 |
Haosail's Supply Chain Management Team, Quality Management System and kinds of Testing Equipments ensure complete confidence in the products and services provided, and to ensure customer satisfaction.
√ Getting things right first time
√ Know kinds of factory well, know their production capacity and advantages, resource allocation, can quick response to all kinds of problems.
√ Develop product cost model independently, get hold of product cost composition
√ Overall optimization design, reduce the cost and the risk
√ Offer products and services that are better in quality or performance than those offered by the competition
√ Customer specifications strictly observed and fulfilled.
We can Technical Design:
Our team have a depth of technical ability and knowledge gained through many years of experience in lifting, rigging and safety. We can provide common lifting design, heavy work lifting design, and can non-standard product lifting design to meet customer needs.
We can do Training:
In order to better serve customers, our company specially organized professionals to carry out training in lifting design, lifting product introduction and use, and lifting product maintenance.